Strainer.



W. H. PINIG-AN.

STRAINER.

APPLICATION FILED 001215, 1910.

Patented Aug'. 26, 1913.

v I I 7 i WWI//mWN-E- f l" UNTTED STATES VPATENT OFFICE.

WILLIAM,H. FINIGAN, OF SHARON HILL, PENNSYLVANIA, ASSIGN'OB T0 GILBERT & BAKKER MANU'FACTURINGl COMPANY, 0F NEW YORK, N. Y., CORPORATION 0F MASSACHUSETTS.

. STRAINER.

citizen of the United States, residing at Sharon Hill, county of Delaware, and State of Pennsylvania, have invented certain new and useful Improvements in Strainers, fully described and represented in the following specification and the accompanying drawlngs, forming a part of the same.

This invention relates to strainers for the principal purpose of straining gasolene and similar iuids during the flow or passage thereof from one pipe to another, or one receptacle to another.

Commercialv gasolene contains both dirt and water, both of which it is important to remove, and this can be expeditiously effected by means located in the pipe or passage through which the gasolene is supplied. Such a strainer must be entirely effective to remove the dirt and water, however, or else it is obviously useless; a little water is nearly as objectionable as a considerable quantity, and the same is true of the dirt.

It is the main object of my invention to `provide a strainer adapted to. satisfy the foregoing requirements.

The drawing illustrates in vertical section la strainer constructed to embody the invention.

Referring to the drawing, 1 denotes a receptacle of inverted dome-shape, having an inlet passage 2 and an outlet passage 3. The inlet pipe is above the level of the outlet pipeand it is characteristic of the arrangement that the two pipes are not in the' same direct alinement so as to permit a straight How from one to the other. On the contrary, a baiiie-plate or surface 4 is so located with respect to the inlet pipe as to direct the flow away from the outlet pipe and into the cavity or chamber of the receptacle 1. In practice, the two pipes are arranged with their axes in the same vertical planes and parallel with one another and spaced apart a distance at least equal to the bore of the pipes. The bathe-plate is conveniently provided by a curved wall 4 of the chamber'or receptacle 1 and preferably located somewhat beyond the vertical center thereof.

5 denotes the filter having several distinguishing characteristics. The filter is removable and inserted throughthe opening of the outlet passage and consists, as illus- Specification of Letters Patent. Application filed October 15,1910. Serial No 587,167.

Patented Aug. .26, 1913.

trated, of an elongated cup-shaped sieve 6 with a flanged-neck 7 received in an annular recess 8 of the outlet opening.

10 denotes a screw ring received in a threaded portion 11 of the outlet opening and adapted to clamp upon and hold the Ysaid sieve 6 in its proper place.

12 denotes a coupling by which the delivery pipe 13 is secured to the body of the strainer. Thisconnection permits the removal of the delivery pipe and removal of the sieve whenever desired.

16 denotes a similar coupling for the inlet pipe 17. 18 designates a cock, opening into a small cavity 19 at the bottom of the chamber 1,1 and through which water and dirt collectedl` by the strainer may be drawn off or eX- pelled.

The operation is as follows: Gasolene enters through the inlet pipe 17 and the stream or column is broken or deiected-by the bafiie-plate 4. In this way the force due to its velocity is lost and it spreads and flows downward over the strainer without forcibly impinging against the same. `Accord ingly no dirt or water is driven by force or momentum through the interstices of the sieve, although the gasolene is not prevented from following its natural tendency to How through the sieve and into the delivery pipe. Some of the gasolene flows downward into the comparatively large chamber l Where the dirt and water settle to they bottom.,

percentage of the gasolene is l` deflected i through the sieve in the first instance and thereby disposed of. 1t will be found in practice that the dirt and water settles at the bottom of the chamber 1, while that portion of the gasolene which did not pass through the sie-ve in the first instance is subsequently free to escape through the bottom of the sieve and at the end thereof.

Changes and variations may be made in the construction by which the invention is carried into effect. The invention is not, therefore, to be confined to the particular construction` herein described and illustrated in the accompanying drawing.

A strainer comprising a chamber of inverted domeshape having a drain cock, an inlet pipe extending into the top of said chamber, and having a clearpassage for the flow of iuid substantially clear across the top of the chamber, a wall forming a defleeting surface ,on the-inside of saidvchamber for the incoming fluid, an elongated cupsha ed sieve directly below the inlet pipe an parallel to the flow thereof, and an outlet connection co-axial with said sieve.

In testimony whereof, I have hereunto set my hand, in the presence of two subscribing witnesses.

WILLIAM H. FINIGAN.

Witnesses HARRY C. 'WoRRALL, PHILIP B. CURRAN. 

